I see stories in the scandal section of the repercussions of 'black friday' of poker, but what exactly was it?
On April 15th, 2011, the US Department of Justice seized the domains of
pokerstars, Fulltilt, and Absolute/Ultimate Bet. These poker sites were suddenly no longer available to US players, their accounts and balances in limbo
As it turned out, FullTilt did not have the players' money on hand, and a huge scandal regarding that site emerged.
In the end, Pokerstars paid off its US players, and stopped serving those players, unless and until it is legal for them to do so (currently, NJ is the sole state Pokerstars operates in the US)
FullTilt's assests were purchased by Pokerstars as part of a $700+ million dollar settlement with the US DoJ. That money was used to repay victims of the FTP fraud.
AB/UB went away, some player money may or may not have been returned via DoJ
The events of 4/15/2011 changed online poker in the US forever